摘要:
Method for adjusting the compression stroke allowance of a vertical injection-compression molding machine including a slide plate mounting thereon a mold clamp cylinder and an upper mold in opposition to a lower mold on a machine bed, and a lift cylinder for moving the slide plate up and down along tie bars, the method including the steps of: downwardly extending a piston rod of a hydraulic cylinder connected to the slide plate to a stroke end: upwardly extending a piston rod of an air cylinder connected to the bed thereof, with the upper and lower molds in contact with each other, until a micrometer at the upper end of the air cylinder piston rod abutts the lower end of the hydraulic cylinder piston rod; fixing the air cylinder piston rod in this state; upwardly retracting the hydraulic cylinder piston rod; setting the micrometer at a desired compression stroke allowance; lowering the hydraulic cylinder piston rod to the stroke end thereof; and lifting the slide plate so as to allow for injection-compression molding operation.
摘要:
A waste gas discharging device for use in an injection molding machine including a vacuum pump connected by way of a waste gas discharging unit to a vent hole in an injection molding machine, a branch path leading to a blower and connected between the vent hole and the waste gas discharging unit, the branch path being open and closed by a firstchange-over valve, and a second change-over valve disposed between the vacuum pump and the waste gas discharging unit, whereby waste gas from the waste gas discharging unit is discharged to atmosphere, without passing through the vacuum pump.